Abdominal MRI at ultra-high field benefits from increased SNR but is challenged by high B1+-inhomogeneity. We use eight-channel parallel transmission to homogenize B1+ signal in 7T liver MRI and compare CP-transmission against phase shimming and a kt-points pulse. Increased signal homogeneity was obtained with the kt-points pulse and phase shimming compared to CP-transmission for small volunteers. Combining the kt-points pulse with a compressed sensing reconstruction facilitated single breath-hold high-resolution liver MRI. With improved B1-mapping and kt-point optimization, kt-points is expected to also improve homogeneity in larger volunteers, and to outperform phase shimming in achieving homogeneous signal in 7T liver MRI.
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